package org.solmix.commons.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * 
 * @author Solomon
 * 
 */
public class SumJavaCode
{
	static long fileCont = 0;
	static long normalLines = 0; // 空行
	static long commentLines = 0; // 注释行
	static long whiteLines = 0; // 代码行
	static List<String> packList = new ArrayList<String>();

	public static void main(String[] args) throws IOException {
		SumJavaCode sjc = new SumJavaCode();
//		File f = new File(System.getProperty("user.dir") + System.getProperty("file.separator") + "src");
		File f = new File("M:\\workspace\\platform\\core\\trunk\\solmix-web\\solmix-app\\src");
//		File f = new File("E:\\o\\e200pro\\WebRoot");
		// File f = new File("E:\\o\\e200pro\\src\\com\\ieslab");
		System.out.println(f.getName());
		sjc.treeFile(f);
		System.out.println("文件数目" );
		System.out.println("空行" );
		System.out.println("注释行" );
		System.out.println("代码行" );
		System.out.println(fileCont);
            System.out.println(whiteLines);
            System.out.println( commentLines);
            System.out.println(normalLines);
//		System.out.println(System.getProperty("file.separator"));
		for (String pack : packList) {
//			System.out.println(pack);
		}
	}

	/**
	 * 查找出一个目录下所有的.java文件
	 * 
	 * @param f
	 *           要查找的目录
	 * @throws IOException 
	 */
	private void treeFile(File f) throws IOException {
		File[] childs = f.listFiles();
		// int count = 0;
		// int sum = 0;
		for (File child : childs) {
		    if(child.getCanonicalPath().equals("M:\\workspace\\platform\\core\\trunk\\bundles")){
		       continue;
		    }
			if (child.isDirectory()) {
				treeFile(child);
				if (child.listFiles().length > 0) {
					try {
						if (!packList.contains(child.getCanonicalPath().toString()))
							packList.add(child.getCanonicalPath().toString());
					} catch (IOException e) {
						e.printStackTrace();
					}
				}
			} else {
				sumCode(child);

			}
		}
	}

	/**
	 * 计算一个.java文件中的代码行，空行，注释行
	 * 
	 * @param file
	 *           要计算的.java文件
	 */
	private void sumCode(File file) {
		BufferedReader br = null;
		long begin = normalLines;
		boolean comment = false;
		if(!(file.getName().endsWith(".jsp")||file.getName().endsWith(".java")||file.getName().endsWith(".xml"))){
		return;
		}
		if(file.getName().endsWith(".ds.xml")||file.getName().endsWith(".data.xml"))
		    return ;
		fileCont++;
		try {
			br = new BufferedReader(new FileReader(file));
			String line = "";
			try {
				while ((line = br.readLine()) != null) {
					line = line.trim();
					if (line.matches("^[\\s&&[^\\n]]*$")) {
						whiteLines++;
					} else if (line.startsWith("/*") && !line.endsWith("*/")) {
						commentLines++;
						comment = true;
					} else if (true == comment) {
						commentLines++;
						if (line.endsWith("*/")) {
							comment = false;
						}
					} else if (line.startsWith("//")) {
						commentLines++;
					} else {
						normalLines++;
					}
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} finally {
			if (br != null) {
				try {
					br.close();
					br = null;
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		System.out.println(normalLines - begin + ":" + file.getName());
	}
}
